2024
DOI: 10.1103/physrevd.109.092013
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Search for the production of deuterons and antideuterons in e+e annihilation at center-of-mass energies between 4.13 and 4.70 GeV

M. Ablikim,
M. N. Achasov,
P. Adlarson
et al.

Abstract: Using a data sample of e+e− collision data corresponding to an integrated luminosity of 19  fb−1 collected with the BESIII detector at the BEPCII collider, we search for the production of deuterons and antideuterons via e+e−→ppπ−d¯+c.c. for the first time at center-of-mass energies between 4.13 and 4.70 GeV. No significant signal is observed and the upper limit of the e+e−→ppπ−d¯+c.c. cross section is determined to be from 9.0 to 145 fb depending on the center-of-mass energy at the 90% confidence level. … Show more

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